<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        // const obj = {
        //     name: 'pink老师',
        //     age: 20,
        // };
        // // const o = { ...obj };
        // const o = {};
        // Object.assign(o, obj);
        // o.age = 18;
        // console.log(o);
        // console.log(obj);
        //如果是多层对象时就会出现问题
        const obj = {
            name: 'pink老师',
            age: 20,
            family: {
                baby: '小pink'
            }
        };
        const o = {};
        Object.assign(o, obj);
        o.family.baby = '老pink';
        console.log(o); // family:{ baby: '老pink' }
        console.log(obj);// family:{ baby: '老pink' }


    </script>
</body>

</html>